发明名称 |
Wideband erbium doped fiber amplifier capable of minimizing band crosstalk |
摘要 |
The inventive fiber amplifier comprises: (a) a first Er-doped fiber provided with a first light-pumping source via a first pump combiner to amplify input optical signals; (b) a second Er-doped fiber provided with a second light-pumping source via a second pump combiner to amplify input L-band optical signals; (c) a C/L splitter provided in the downstream of the first Er-doped fiber for splitting the optical signals into C- and L-bands, respectively, during passage through the C/L splitter; (d) a reflector for transmitting the L-band optical signals split in the C/L splitter toward the second Er-doped fiber and reflecting the transmitted L-band optical signals to flow back toward the second Er-doped fiber; (e) a circulator for introducing the L-band optical signals which are amplified after backward flow from the reflector toward another direction and preventing the backward flow of ASE generated during amplification toward the first Er-doped fiber; and, (f) a C/L combiner for combining the C-band optical signals split in the C/L splitter and the L-band optical signals introduced from the circulator.
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申请公布号 |
US6903868(B2) |
申请公布日期 |
2005.06.07 |
申请号 |
US20020299488 |
申请日期 |
2002.11.19 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
HWANG SEONG-TAEK;SONG KWAN-WOONG |
分类号 |
H01S3/10;G02B6/00;H01S3/067;H01S3/07;H01S3/094;H01S3/16;H01S3/23;H04B10/02;H04B10/16;H04B10/17;H04B10/18;H04J14/00;H04J14/02;(IPC1-7):H01S3/00 |
主分类号 |
H01S3/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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